Slow retract manual screen1&rpar; Simply pull the screen material down to the required stop position&period; This is same as regular self-lock screen&period;2&rpar; To retract&comma; pull the handle downwards and let then release the handle&comma; the fabric will now auto retract into the case housing slowly without having to manually guide it to the top&period; Just pull once to make it roll in&period; This feature will prolong the life-span of the already durable screen while adding an impressive closure to your presentations&period; It also avoids the risk of personal injury&period;3&rpar; The noise control design ensures that raising and lowering the screen is smooth and quiet&period;4&rpar; Extra black drop top border available&period;5&rpar;Extra drop down black top available for height adjustment purpose&period;